Toreno, our tour guide was not the best you'll probably find out there. Not too friendly nor the tour leader type of character. Ended up 80 of the tour session just listenin to him/hopping between places without much of solid tour matter itself. In the description given about the tour, much details are given about the sea-island-water based activity. However, only the last 1 hour of the tour actually involved that. That too, not much of time given to actually slot in blue grotta entrance although on our tour day, the rain itself didn't permit us to enter the grotta.
Overall, rather disappointing tour and a total let down for us. And we were not the only ones that felt that, most of the others in our tour group had the similar feeling.